Locking switch



FIG. 1 is a top front prospective view of the locking switch, showing my new design;

FIG. 2 is a side elevation view;

FIG. 3 is a side elevation view, opposite that of FIG. 2;

FIG. 4 is a top plan view;

FIG. 5 is a back elevation view;

FIG. 6 is a front elevation view; and,

FIG. 7 is a bottom plan view.

The surface shading on the illustrated locking switch is intended only to show the character and contour of the surface and not surface indicia.

The broken line showing a housing in FIG. 1 is to illustrate an environment only, and forms no part of the claimed design. 

The ornamental design for a locking switch, as shown and described. 